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Sunday, June 4th, 2023

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MG8725 Multiple internet dropoffs daily with SYNC Timing Synchronization failure

These issues cropped up shortly after a trench was dug through my yard to replace a cable to a neighbors house down the street about 6 months ago.

Logs sometimes have weird dates.   Not sure, though it looks if the time is correct, many issue happen at 7pm

 

Not sure what OFDM is but corrected number looks out of whack.

 

Event Log

   Event Log

 


  

 

   

Time 

 

Priority 

 

Description 

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;

   

19:00:36
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:39
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

06:01:29
Thu Jun 1 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:37
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:39
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

15:15:07
Thu Jun 1 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:35
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:40
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

21:15:04
Thu Jun 1 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:33
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:39
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

03:06:29
Fri Jun 2 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:34
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:39
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

12:52:08
Fri Jun 2 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:34
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:39
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

20:16:39
Fri Jun 2 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:33
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:38
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

05:54:32
Sat Jun 3 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:36
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:40
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

16:20:47
Sat Jun 3 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:35
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:41
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

   

02:30:17
Sun Jun 4 2023

 

Notice(6)

 

DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:29
Web Dec 31 1969

 

Critical(3)

 

SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:37
Web Dec 31 1969

 

Critical(3)

 

No Ranging Response received - T3 time-out;CM-MAC=00:00:00:00:00:00;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

   

19:00:42
Web Dec 31 1969

 

Notice(6)

 

Honoring MDD; IP provisioning mode = IPv6

Downstream Bonded Channels

 


  

   Channel

Lock Status

Modulation

Channel ID

Freq. (MHz)

Pwr (dBmV)

SNR (dB)

Corrected

Uncorrected

   1

Locked

256 QAM

9

507.0

12.4

43.3

0

0

   2

Locked

256 QAM

6

483.0

12.0

42.9

0

0

   3

Locked

256 QAM

7

489.0

12.1

43.0

0

0

   4

Locked

256 QAM

8

495.0

12.5

43.2

0

0

   5

Locked

256 QAM

10

513.0

12.4

43.3

0

0

   6

Locked

256 QAM

11

519.0

12.7

43.4

0

0

   7

Locked

256 QAM

12

525.0

12.8

43.2

0

0

   8

Locked

256 QAM

13

531.0

12.9

43.2

0

0

   9

Locked

256 QAM

14

537.0

12.9

43.3

0

0

   10

Locked

256 QAM

15

543.0

13.3

43.4

0

0

   11

Locked

256 QAM

16

549.0

13.4

43.3

0

0

   12

Locked

256 QAM

17

555.0

13.5

43.5

0

0

   13

Locked

256 QAM

18

561.0

13.7

43.5

0

0

   14

Locked

256 QAM

19

567.0

13.9

43.5

0

0

   15

Locked

256 QAM

20

573.0

13.8

43.6

0

0

   16

Locked

256 QAM

21

579.0

13.7

43.5

0

0

   17

Locked

256 QAM

22

585.0

13.9

43.5

0

0

   18

Locked

256 QAM

23

591.0

14.1

43.6

0

0

   19

Locked

256 QAM

24

597.0

14.1

43.6

0

0

   20

Locked

256 QAM

25

603.0

13.9

43.4

0

0

   21

Locked

256 QAM

26

609.0

13.9

43.5

0

0

   22

Locked

256 QAM

27

615.0

14.3

43.4

0

0

   23

Locked

256 QAM

28

621.0

14.6

43.5

0

0

   24

Locked

256 QAM

29

627.0

14.5

43.5

0

0

   25

Locked

256 QAM

30

633.0

14.5

43.3

0

0

   26

Locked

256 QAM

31

639.0

14.6

43.6

0

0

   27

Locked

256 QAM

32

645.0

14.9

43.5

0

0

   28

Locked

256 QAM

33

651.0

14.8

43.5

0

0

   29

Locked

256 QAM

34

657.0

14.9

43.4

0

0

   30

Locked

256 QAM

35

663.0

15.1

43.6

0

0

   31

Locked

256 QAM

36

669.0

15.3

43.7

0

0

   32

Locked

OFDM

37

690.0

15.9

43.1

7268943

0

 

   Upstream Bonded Channels

 


  

   Channel

Lock Status

Channel Type

Channel ID

Symb. Rate (Ksym/sec)

Freq. (MHz)

Pwr (dBmV)

   1

Locked

SC-QAM

1

5120

35.6

42.0

   2

Locked

SC-QAM

2

5120

29.2

41.5

   3

Locked

SC-QAM

3

5120

22.8

41.0

   4

Locked

SC-QAM

4

5120

16.4

41.8

   5

Locked

SC-QAM

5

1280

39.6

42.0

 

Question

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Updated 

2 years ago

 • Edited

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